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🛡️ CVE-2022-21540 on Ubuntu — icedtea-web

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Vulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Hotspot). Supported versions that are affected are Oracle Java SE: 7u343, 8u333, 11.0.15.1, 17.0.3.1, 18.0.1.1; Oracle GraalVM Enterprise Edition: 20.3.6, 21.3.2 and 22.1.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Oracle Java SE, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability can also be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. CVSS 3.1 Base Score 5.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).

Distribution advisory

This page covers CVE-2022-21540 as tracked by Ubuntu, for the package icedtea-web. The fix is available in version 17.0.4+8-1~22.04; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity none, availability none.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: None — an unauthenticated stranger can try it.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: Low — limited, and the attacker does not choose what is affected.
  • Integrity impact: None.
  • Availability impact: None.

Weakness class

UBUNTU-CVE-2022-21540 is classified as CWE-416: Use After Free. Memory is used after being released, so its contents may already belong to something else.

Affected software

UBUNTU-CVE-2022-21540 is recorded against 8 packages.

  • icedtea-web
  • openjdk-13
  • openjdk-16
  • openjdk-17 (fixed in 17.0.4+8-1~22.04)
  • openjdk-18 (fixed in 18.0.2+9-2~22.04)
  • openjdk-8 (fixed in 8u342-b07-0ubuntu1~22.04)
  • openjdk-9
  • openjdk-lts (fixed in 11.0.16+8-0ubuntu1~22.04)

Timeline and source

Published on 19 July 2022 and last revised on 20 May 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

ubuntu.com (Report)
www.oracle.com (Report)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
www.cve.org (Report)

Other advisories for this package

icedtea-web has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-416: Use After Free) in other software:

CVE-2022-21540 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2022-07-19
Updated 2026-08-20
Modified 2026-05-20
Fix URL N/A

Affected Packages

Software From version Fixed in
icedtea-web — —
openjdk-13 — —
openjdk-16 — —
openjdk-17 — 17.0.4+8-1~22.04
openjdk-18 — 18.0.2+9-2~22.04
openjdk-8 — 8u342-b07-0ubuntu1~22.04
openjdk-9 — —
openjdk-lts — 11.0.16+8-0ubuntu1~22.04

Similar Threats

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